re PR c++/11174 (derived class can access protected base class member function through pointer to member function)

	PR c++/11174
	* init.c (build_offset_ref): Perform access checking for
	pointer to member correctly.

	* g++.dg/parse/access4.C: New test.
	* g++.dg/parse/access5.C: Likewise.
	* g++.old-deja/g++.jason/access17.C: Adjust error message.

From-SVN: r70566